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252151124 = 2263037781
BaseRepresentation
bin11110000011110…
…00010101010100
3122120110121022112
433001320111110
51004022313444
641004250152
76151151321
oct1701702524
9576417275
10252151124
1111a372965
1270540958
1340316864
14256b9b48
151720b69e
hexf078554

252151124 has 6 divisors (see below), whose sum is σ = 441264474. Its totient is φ = 126075560.

The previous prime is 252151111. The next prime is 252151177. The reversal of 252151124 is 421151252.

It can be written as a sum of positive squares in only one way, i.e., 251539600 + 611524 = 15860^2 + 782^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 252151124.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31518887 + ... + 31518894.

It is an arithmetic number, because the mean of its divisors is an integer number (73544079).

Almost surely, 2252151124 is an apocalyptic number.

It is an amenable number.

252151124 is a deficient number, since it is larger than the sum of its proper divisors (189113350).

252151124 is a wasteful number, since it uses less digits than its factorization.

252151124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63037785 (or 63037783 counting only the distinct ones).

The product of its digits is 800, while the sum is 23.

The square root of 252151124 is about 15879.2671115515. The cubic root of 252151124 is about 631.7621982282.

The spelling of 252151124 in words is "two hundred fifty-two million, one hundred fifty-one thousand, one hundred twenty-four".

Divisors: 1 2 4 63037781 126075562 252151124